Extension (Enter The Annual Value Of Each Extension)-, 1 Number+ 10 Sip Channels-, Ip Gigabit Telephone Device 10/100/1000.-Ip Gigabit Telephone Device 10/100/1000.Call Featuressip Accounts: 4 Sip Accounts Line Keys: 2 Line Keys With Two-Color Led Programmable Function: 4 Programmable Context Sensitive Keys Conference: 5-Way Voice Conference Calling Features: Hold, Transfer, Forward, 5-Way Conference, Call Park, Call Pickup, Shared-Call-Appearance(Sca)/Bridged-Line-Appearance(Bla), Call Waiting, Call Log(Up To 800 Records), Off-Hook Auto Dial, Auto Answer, Click-To-Dial, Flexible Dial Plan, Hot-Desking, Personalized Music Ringtones And Music On Hold, Server Redundancy And Fail-Overphonebook: Up To 2000 Contactscall History: Up To 800 Recordsphysical Dimensions: 208Mm (L) 880G (Package)Operating Temperature: 0°C To 40°Cstorage Temperature: -10°C To 60°Operating Humidity: 10% To 90% Non-Condensing Audio Voice Codecs: G.729A/B, G.711?/A-Law, G.726, G.722(Wide-Band), G.723, Ilbc, Opus, In-Band And Out-Of-Band Dtmf(In Audio, Rfc2833, Sip Info) Tcp/Ip/Udp, Rtp/Rtcp, Rtcp-Xr, Http/Https, Arp, Icmp, Dns(A Record, Srv, Naptr), Dhcp, Pppoe, Ssh, Tftp, Ntp, Stun, Simple, Lldp-Med, Ldap, Tr-069, Snmp, 802.1X, Tls, Srtp, Ipv6power Power Supply: Universal Input 100-240Vac 50-60Hz; Output +5Vdc, 600Mapoe: Ieee802.3Af Class 1, 3.84W; Ieee802.3Az (Eee)Securitysecurity: User And Administrator Passwords Based On Sha-256 And Sha-256 Sess; Sip Authentication Algorithms Based On Sha-256, Sha-256 Sess, Sha-512/256, Sha-512/256 Sess, Md5 Sess; Aes Security Profile; Srtp; Tls Call Encryption; 802.1X Media Access Controlfirmware Protection: Secure Boot, Dual Firmware Images, Encrypted Data Storageuser Interfacekeys: 2 Line Keys, 4 Programmable Context Sensitive Keys,
